ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC SWITCHING CHARACTERISTICS1 (CL = 50 pF, TA = + 25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic
VDD
Symbol
Vdc
Min
Typ2
Max
Unit
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Rise Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.7 ns/pF) CL + 65 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.25 ns/pF) CL + 37.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.2 ns/pF) CL + 30 ns
Output Fall Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.2 ns/pF) CL + 30 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.06 ns/pF) CL + 17 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.04 ns/pF) CL + 13 ns
Propagation Delay Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH = (0.33 ns/pF) CL + 63.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH = (0.19 ns/pF) CL + 30.5 ns
tPLH = (0.06 ns/pF) CL + 27 ns
tTLH
ns
5.0
—
100
160
10
—
50
80
15
—
40
60
tTHL
ns
5.0
—
40
60
10
—
20
40
15
—
15
30
tPLH
ns
5.0
—
80
140
10
—
40
80
15
—
30
60
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Propagation Delay Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL = (0.2 ns/pF) CL + 30 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL = (0.1 ns/pF) CL + 15 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL = (0.05 ns/pF) CL + 12.5 ns
tPHL
ns
5.0
—
40
80
10
—
20
40
15
—
15
30
1 The formulas given are for the typical characteristics only at 25_C.
2 Data labeled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
MC14049B
VDD
1
MC14050B
VDD
1
8 VSS
IOH
VOH
VDS = VOH – VDD
8 VSS
IOL
VOL
0
VGS = 5.0 Vdc
– 10
– 20
– 30 VGS = 10 Vdc
– 40
VGS = 15 Vdc
MAXIMUM CURRENT LEVEL
– 50
– 10
– 8.0
– 6.0
– 4.0
– 2.0
0
VDS, DRAIN–TO–SOURCE VOLTAGE (Vdc)
Figure 1. Typical Output Source Characteristics
MC14049B
VDD
1
8 VSS
IOL
VOL
VDD = VOL
MC14050B
VDD
1
8 VSS
IOH
VOH
160
VGS = 15 Vdc
120
80
VGS = 10 Vdc
MAXIMUM CURRENT LEVEL
40
VGS = 5.0 Vdc
0
0
2.0
4.0
6.0
8.0
10
VDS, DRAIN–TO–SOURCE VOLTAGE (Vdc)
Figure 2. Typical Output Sink Characteristics
MOTOROLA CMOS LOGIC DATA
MC14049B MC14050B
3